The GetTableData processor doesnt create the correct SQL select statement when working off a database that is case sensitive column names
The code in GetTableDataSupport.java, line 78 generates the SELECT for the query.
The selectStatement() call does a simple join of the columns by a comma. Postgres requires the column names to be quoted for case sensitivity:
Instead of SELECT d.NAME, d.TBL_NAME FROM ...
It needs to be: SELECT d."NAME", d."TBL_NAME" ...
Detect if using Postgres or not
Quote the select accordingly when getting the select statement